A gas occupies 200cm^3 at 15°c and 750mmHg
What volume will it occupy at 50°C and 700mmHg

Lewis structure and molecular geometry for nh2cl

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this